The syntax of the blocking send procedure is given below.
| MPI_SEND(buf, count, datatype, dest, tag, comm) | |
| IN buf | initial address of send buffer (choice) |
| IN count | number of elements in send buffer (nonnegative integer) |
| IN datatype | datatype of each send buffer element (handle) |
| IN dest | rank of destination (integer) |
| IN tag | message tag (integer) |
| IN comm | communicator (handle) |
The blocking semantics of this call are described in Section Communication Modes.